74406736 has 20 divisors (see below), whose sum is σ = 151751200. Its totient is φ = 35245152.

The previous prime is 74406733. The next prime is 74406743. The reversal of 74406736 is 63760447.

It is a junction number, because it is equal to n+sod(n) for n = 74406695 and 74406704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74406733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122076 + ... + 122683.

It is an arithmetic number, because the mean of its divisors is an integer number (7587560).

Almost surely, 2^74406736 is an apocalyptic number.

74406736 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

74406736 is an abundant number, since it is smaller than the sum of its proper divisors (77344464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74406736 is a wasteful number, since it uses less digits than its factorization.

74406736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244786 (or 244780 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 74406736 is about 8625.9339204517. The cubic root of 74406736 is about 420.6014361459.

The spelling of 74406736 in words is "seventy-four million, four hundred six thousand, seven hundred thirty-six".